Evaluation of microchip migration in horses, donkeys, and mules.

Objective: To determine whether microchips used for identification migrate after implantation in horses, donkeys, and mules.

Design: Prospective study.

Animals: 53 horses, donkeys, and mules.

A juxtarenal myelolipoma in a cottontop marmoset (Saguinus oedipus): A case report.

A myelolipoma was surgically removed from the abdomen of a 15-year-old female cottontop marmoset (Saguinus oedipus). Because of its close adherence to the right kidney, a unilateral nephrectomy was performed. The post-surgical recovery was uneventful.